Elastic-fluid turbine.



C. Gl CURTIS L L. D. LVEKIN BLASTIG FLUID TULBINB APPLwATluN FILED110.15.1911` Paented Aug. 11., l

J A `N UNITED srA'rns Piu-ENT Fries.

CHARLES G. comte, or nsvv Yomjn. Y., AND LUTHER n. Lovsxm, on PalmenPHIA, PnNNsYLvsm 'ELASTIC-FLUID TURBINE.

License.

Speccaton of-Letters Patent. Patented Aug.`11, 1914.

Appucation filed December is, 191i. serial No. 665,913. v

To @ZZ whom it may. concern: l

Be it. known that We, CHARLES G. Comisi il citizen of the United States,residing in the L allysteam turbines, for use tin-- Y lGad'sand speed.

lltioifis lmore vparticularly inngjna-rine installations, Aparlarfships.

ofthe invention lis to produce' steam-economy and which will do thisoverY all Y ranges "ofspeed ,x Thesend further objects will more fully'aippeein the following specification and comp/spying drawings,considered together or separately. K In the'drawinggFigure 1 is a planView, more'or less diagrammatic, of an installation 'embodying ourinvention, and Fig. 2 is a detail of the steam passages and a valve.

In, both of the views, like `parts are indicated by the same referencecharacters.

Referring to the drawings, 1 is the center shaft. yOn this shaft Wearrange two turbines 2 and 2', and We provide each of these turbineswith a condenser 3 and 3', these condnsers being` each connected to itsadjacent turbine hymeans of a passage 4. Between the two turbines is yathrust-block 5, if such is necessary. On each side of the centershaft 1,is a Wing shaft 6, 6. Drivingr each wing'shaftis a steam prime mover forwhich purpose We prefer a reciprocating engine 7, 7 .The exhaust pipesof low pressure cylinders 8, 8 of each of th'e'reciprociting engines,are connected to a manifold 9, this manifold beingr connected to bothlow pressure cylinders 8, 8 of the engine, through the pipes 18, 18.From-each of the manifolds are pipes 10, connected to the twoturbines,'serving as an independent connection to the individualturbines. The manifolds are also connected to the condensers by means ofthe pipes 1Q, 12. The

entier; lrelates to elastic fluid turnibination which will give a veryhigh,1

connectionsare so arranged that the exhaust from each of thereciprocating engines can enter the turbinesthrough the manifold and thepipes 10 in multiple. In addition, by means of aY valve 13, the manifoldmay he closed in relation to its communication with the passage totheturbines, and opened in connection with the pipes 12- o the condenser,so that the exhaust from the engines maypass directly to the condensers.This .valve 13 (illustrated in Fig. 2) is adapted to slide inthemanifold so\ as to opeh\tl1e passage' from the pipe'lS to the pipe10, closing it from the pipe 18 to the pipe 12. When the valve is movedin the other direction, it will close the passage from the pipe 18 tothe pipe 12 and open it from the pipe -18 to the pipe 10.'. v

The valve 13 is oper'afcd by a rod 14. Means is provided forsiltaneously oper-- atingl the Valves 13, 13 at each end of the manifold.This means may conveniently consist, as shown, of racks l5 connected tothe ro'd 14 and a pinion 16 engaging with both racks. In addition, avalve 17 may-he arranged in the center of the manifold be tween the twopipes 10 and,10. y

According to this invention, when running at full loads and high speedthe sev i eral valves 13 Will he so positioned that the exhaust from thetwo low pressure cylinders 8, 8, will pass through the passagesA 1S, 18into the manifold, and from thence will he distributed' to the twoturbines 2 and 2'. The same arrangement is made with the steamcnnecti'ons of both reciprocating engines. 'Vihcn running under reducedloads and low speeds, the valves 13 will be in the same position, hutone of the valves 11 or 11 will ^oe closed so that the exhaust from thereciprocating engines will he entirely utilized in one of the turbines.When maneuvering or going astern, the valves 13. Will be soq positionedthat the reciprocating engines will exhaust directly into the condansers. Either or both otf the reciprocatingr engines .may then he runastern.

lt will loe apparent from the foregoing description that at high speeds,h twoitulh hines, there is a large steam passage to toko care of thefull volume steam, and that at low speeds and powers only one of theAturbines being utilized, We thereby reduce the area of steam passage soas to better adapt it to thevolume ofl steam corresponding tothe lightload. According to this construction it is apparent that no'reversingturbine is required, and as the, turbines will utilize leffectively all'of the discharge from the reatthe same time the condensers can be madein two or` more units, each one separately connected t-o the turbine, sothat the con' densers can be kept down to a reasonable size, and in theevent of damage to one, the

other one can be operated independently.

Our arrangement also permits simple and direct steam connections, 'thepipes being short without many turns.

VIn accordance With the provisions of the patent statutes, We havedescribed the principle 0f our invention, together with the apparatuswhich We now consider to represent the best enbodiment thereof; but Wedesire 'to have it understood that the apparatus shown is merelyillustrative and that the invention may be carried out in other ways.Having now described our invention, what We claim as new and desire tosecure by Let-- ters Patent, is z- 1. The combination with a pluralityof turbines on a shaft, and a prime mover on a separate shaft, acondenser, connections from the prime mover to the turbines, connectionsfrom the prime mover to the condenser, and means for shutting oif theconnections to one of the turbines and opening the connections to thecondenser.

2. The. combination with a plurality of turbines on a center shaft, of aprime mover on a separate shaft, at each side of the'center shaft, meansfor passing working fluid through the prime movers, and from theirdischarge to the turbines in multiple at full loads, and means forcutting out one of the turbines at low loads.

3. The combination with a plurality of turbines on a center shaft, cfaprime mover on a separate shaft, at each side of the center shaft, a'condenser, connections from the prime movers to the turbines,connections from the prime movers to the condenser, and means forshutting off the connections'to the turbines, and opening theconnect-ions to the condenser.

This specification si ned and witnessed this 13th day of Decem er, 1911.

CHARLES G. CURTS.

LUTHER D. LOVEKlN. Witnesses:

.louis L. LOTSCH, GUsTav A. SCHELLACK.

